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Orne (river)

Coordinates: 49°16′42″N 0°13′34″W / 49.27833°N 0.22611°W / 49.27833; -0.22611
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(Redirected from Orne River, Normandy)
Orne
The Orne in Caen
Orne (river) is located in France
Orne (river)
Orne (river) is located in Normandy
Orne (river)
Location
CountryFrance
Physical characteristics
Source 
 • locationAunou-sur-Orne
 • elevation240 m (790 ft)
Mouth 
 • location
English Channel
 • coordinates
49°16′42″N 0°13′34″W / 49.27833°N 0.22611°W / 49.27833; -0.22611
Length170 km (110 mi)
Basin size2,932 km2 (1,132 sq mi)
Discharge 
 • average27.5 m3/s (970 cu ft/s)

The Orne (French: [ɔʁn] ) is a river in Normandy, within northwestern France. It is 170 km (110 mi) long.[1] It discharges into the English Channel at the port of Ouistreham. Its source is in Aunou-sur-Orne, east of Sées. Its main tributaries are the Odon and the Rouvre.

Geography

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The Orne flows through the following departments and towns:

It also flows through the area known as Suisse Normande.[2]

Its longest tributaries are, from source to mouth:[1]

Name

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The name of the Orne in Normandy, which is referred to as the Olinas by Ptolemy,[3] is a homonym of Fluvius Olne, the Orne saosnoise in Sarthe, which Xavier Delamarre traces back to the Celtic olīnā (elbow).

Hydrology and water quality

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The waters of the Orne are typically moderately turbid and brown in colour. Its pH level has been measured at 8.5[4] at the town of St. Andre sur Orne where summer water temperatures approximate 18 °C (64 °F). Electrical conductivity of the water has been measured at 30 microsiemens per centimeter.[citation needed]

See also

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References

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  1. ^ a b Sandre. "Fiche cours d'eau - L'Orne (I2--0200)".
  2. ^ "An active weekend in Suisse Normande - Explore France".
  3. ^ Public Domain Smith, William, ed. (1857). "Olinas". Dictionary of Greek and Roman Geography. Vol. 2. London: John Murray. p. 473–474.
  4. ^ Hogan, C Michael, Water quality of freshwater bodies in France, Lumina Press, Aberdeen 2006.
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